Tried for the first time yesterday and I just plugged in hdmi to laptop and then to hdmi slot on back of tv and it worked great with no fiddling around. Tried again today and got nothing in either hdmi2 and hdmi3 slots. Made sure tv was on correct input. Re booted laptop twice. Turned tv off at the plug. All I get is the no signal from the tv. The laptop does make that funny little two tone squeak every time I put in or pill out the hdmi cable. Any help? Are there any settings I can tinker with on the windows vista software to make it work?